if you would like starting the movie in a long path with long folder name you need to convert it in a short path.
example:
Normal path using quote: PDVDlaunchpolicy.exe AUTOPLAY "C:\Users\XXXX\Videos\Era Glaciale 4 Continenti alla deriva\index.bdmv" it does not work because the folders path is too long.
Short Path using quote: PDVDLaunchPolicy.exe AUTOPLAY "C:\USERS\XXXX\VIDEOS\ERAGLA~1\BDMV\index.bdmv" it works.
it's seems that pdvdlaunchpolicy.exe support only the 8.3 filename format. In my opinion it's not normal.
Do you agree?
HDA